Join Date: Feb 2018
Location: Southwestern Ontario, CA
5.5mm, I just changed my cabin filter a couple weeks ago. Pretty easy to do. Hardest part was removing the damper from the side of the glove box. I will say the replacement filter I got from Advance auto is sturdier than the OEM one but does not have the same number of pleats.
2018 Chevy Equinox LT - Cajun Red, 1.5T FWD
2017 Chevy Sonic RS - Kinetic Blue
1994 Ford Mustang GT - Satin Silver (good weather fun car)